40282078349 has 4 divisors (see below), whose sum is σ = 40283614464. Its totient is φ = 40280542236.

The previous prime is 40282078271. The next prime is 40282078367. The reversal of 40282078349 is 94387028204.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 40282078349 - 2²⁰ = 40281029773 is a prime.

It is a super-2 number, since 2×40282078349² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40282018349) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 728027 + ... + 781400.

It is an arithmetic number, because the mean of its divisors is an integer number (10070903616).

Almost surely, 2^40282078349 is an apocalyptic number.

It is an amenable number.

40282078349 is a deficient number, since it is larger than the sum of its proper divisors (1536115).

40282078349 is a wasteful number, since it uses less digits than its factorization.

40282078349 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1536114.

The product of its (nonzero) digits is 774144, while the sum is 47.

The spelling of 40282078349 in words is "forty billion, two hundred eighty-two million, seventy-eight thousand, three hundred forty-nine".